Over the last decades the most popular model for DM has been in terms of a weakly-interacting massive particle (WIMP). This has been exhaustively searched for in collider as well as in direct and indirect detection experiments. While they still remain viable DM candidates, WIMP models have come more and more under pressure from experimental null results [1]} and
the remaining available parameter space will be probed by
the next generation of DM experiments [2]}.
Below the GeV-scale WIMP-window there are many theoretically well-motivated light dark matter candidates,
which can have relic abundances in agreement with observation from production via freeze-in, particle-anti-particle asymmetry, strong dynamics or non-thermal processes like misalignment [3]}. In this section we want to focus on how to search for such light DM candidates.
